<!DOCTYPE html>
<title>Testcase for bug 1245075</title>
<style>
@keyframes HoldOpacity {
  from, to { opacity: 0.6 }
}
#test {
  width: 100px; height: 100px;
  background: blue;
  display: table;
  animation: HoldOpacity 100s linear infinite;
}
</style>
<div id="test"></div>
